/*首页部分特有*/
.content {
    height: 1000px;
}

.content_left {
    width: 60%;
    height: 100%;
    border-right: 3px solid red;
    overflow: hidden;
}

.content_left h2 {
    text-align: center;
    font-size: 30px;
    margin-top: 100px;
}